Collatz in Python in chars. Cheevos Holes Recent Holes Langs Medals Misc All Holes 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial All Languages ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Bytes Chars Scoring Bytes Chars Language All ><> Assembly AWK Bash BASIC Berry brainfuck C C# C++ Civet Clojure COBOL Coconut Common Lisp Crystal D Dart Elixir F# Factor Forth Fortran Gleam Go GolfScript Groovy Haskell Hexagony J Janet Java JavaScript jq Julia K Kotlin Lua Nim OCaml Pascal Perl PHP PowerShell Prolog Python R Raku Rockstar Ruby Rust Scheme sed SQL Swift Tcl TeX V VimL Wren Zig Experimental Language 05AB1E ALGOL 68 APL Arturo Befunge BQN CJam CoffeeScript Egel Erlang Fennel Harbour Hare Haxe Hush Hy iogii Knight Luau Odin Picat Qore Racket Rebol Rexx Scala Squirrel Stax Uiua Umka Vala Vyxal Hole All 12 Days of Christmas 24 Game 99 Bottles of Beer Abundant Numbers Abundant Numbers (Long) Arabic to Roman Arithmetic Numbers Arrows Ascending Primes ASCII Table Billiards brainfuck Card Number Validation Catalan Numbers Catalan’s Constant Christmas Trees Collatz CSS Colors Cubes Day of Week DFA Simulator Diamonds Divisors Emirp Numbers Emirp Numbers (Long) Emojify Evil Numbers Evil Numbers (Long) Factorial Factorisation Farey Sequence Fibonacci Fizz Buzz Foo Fizz Buzz Bar Forsyth–Edwards Notation Fractions Game of Life Gijswijt’s Sequence Happy Numbers Happy Numbers (Long) Hexdump Hilbert Curve Intersection Inventory Sequence ISBN Jacobi Symbol Kaprekar Numbers Kolakoski Constant Kolakoski Sequence Leap Years Levenshtein Distance Leyland Numbers ln 2 Look and Say Lucky Numbers Lucky Tickets Mahjong Mandelbrot Maze Medal Tally Morse Decoder Morse Encoder Musical Chords N Queens Niven Numbers Niven Numbers (Long) Number Spiral Odious Numbers Odious Numbers (Long) Ordinal Numbers PalindromemordnilaP Pangram Grep Partition Numbers Pascal’s Triangle Pernicious Numbers Pernicious Numbers (Long) Poker Polyominoes Prime Numbers Prime Numbers (Long) Proximity Grid QR Decoder Quine Recamán Repeating Decimals Reverse Polish Notation Reversi Rijndael S-box Rock-paper-scissors-Spock-lizard Roman to Arabic ROT13 Rule 110 Scrambled Sort Set Seven Segment SI Units Sierpiński Triangle Smith Numbers Spelling Numbers Star Wars GPT Star Wars Opening Crawl Sudoku Sudoku (Fill-in) Ten-pin Bowling Tic-tac-toe Time Distance Tongue-twisters Topological Sort Transpose Sentence United States Vampire Numbers Van Eck Sequence Zeckendorf Representation Zodiac Signs γ λ π τ φ √2 𝑒 Experimental Hole Apéry’s Constant Calendar Connect Four CSS Colors (Inverse) CSS Grid Ellipse Perimeters Flags Floyd-Steinberg Dithering Gray Code Decoder Gray Code Encoder Hexagonal Spiral Highly Composite Numbers Minesweeper NFA Simulator Odd Polyomino Tiling p-adic Expansion Polygon Triangulations QR Encoder Quadratic Formula Semiprime Numbers Smooth Numbers Snake Sphenic Numbers Trinomial Triangle Turtle Tutorial # Golfer Points Chars Time 599th r-i-c-e 626 91 9 Jul 2023 599th joshcors 626 91 30 Jun 2024 599th resoNathan 626 91 9 Jul 2024 599th jameswmccarty 626 91 24 Sep 2024 599th hamilton-bonds 626 91 12 Nov 2024 599th Wonamm 626 91 14 Feb 2025 607th TimLeffke 620 92 17 Aug 2022 607th Rythoka 620 92 17 Oct 2022 607th UriyaBA 620 92 19 Mar 2023 607th VladislavGitter 🇪🇸 620 92 14 Nov 2023 607th ridingqwerty 🇺🇸 620 92 22 Dec 2023 607th Thonoton 620 92 1 Feb 2024 607th OCNeve 620 92 17 Jun 2024 607th themoonisacheese 620 92 25 Feb 2025 607th BabySharkHi 620 92 22 Apr 2025 607th arjunarya1 620 92 28 Aug 2025 617th Bananapants22 613 93 4 Sep 2022 617th jaxmattfair 🇺🇸 613 93 10 Jan 2023 617th fenix-bear 613 93 18 Nov 2023 617th epic-programmer-guy 613 93 22 Dec 2023 617th brimstonetrader 613 93 18 Nov 2024 617th Aquateraneal 613 93 11 Aug 2025 623rd atazzam 🇺🇸 606 94 18 May 2022 623rd rohangpta 606 94 8 Aug 2022 623rd shinylego 606 94 14 Sep 2022 623rd sgaltair 606 94 4 Nov 2022 623rd TotoAJ 606 94 15 Dec 2023 623rd Gusic06 606 94 6 May 2024 623rd kyleyarwood 606 94 6 Oct 2024 623rd jj0786-cell 606 94 1 Apr 2025 623rd griffinschreiber 606 94 1 Apr 2025 632nd felixcroc 600 95 30 Mar 2023 632nd Pyro569 600 95 4 Jul 2023 632nd rm-rf-innocence 600 95 19 Dec 2023 632nd Bit125 600 95 30 Jan 2024 632nd aalec 600 95 25 Apr 2024 632nd strogor 600 95 13 Jun 2025 632nd cthierfelder 🇲🇨 600 95 17 Jul 2025 639th karhuthebear 594 96 9 May 2022 639th qwjhvbxi 594 96 6 Feb 2024 639th alfonsoalves 594 96 21 Jul 2024 639th jeff-re 594 96 1 Apr 2025 643rd a-penton 588 97 22 Sep 2022 643rd jrbud 588 97 6 Jan 2024 643rd befoster 588 97 22 Feb 2024 643rd joshua-el-samalouti 🇩🇪 588 97 26 May 2024 643rd luca1339 588 97 10 Jun 2024 648th lukemalek 582 98 10 Oct 2022 648th UltimateGuy0987 582 98 14 Oct 2022 648th TheLazySquid 582 98 20 Dec 2022 648th StronkCheese 🇺🇸 582 98 13 Mar 2023 648th Anthony-Williams-06 582 98 17 Oct 2023 648th NoneTheFewer 582 98 17 May 2024 648th abcdhhhh 582 98 27 Aug 2024 648th OSYCh314 🇦🇺 582 98 16 Nov 2024 648th cole-wilson 582 98 9 Dec 2024 648th Akilles1 582 98 15 May 2025 658th LukeRichardson-dev 576 99 12 May 2022 658th Tagfox 576 99 18 Jul 2022 658th gabrielsqw 576 99 24 Oct 2023 658th sciencedjinn 576 99 8 Nov 2024 658th MrNiknoc 576 99 15 Jun 2025 663rd OppositeShark 570 100 19 Jul 2022 663rd NOS4A5I 570 100 10 Jan 2023 663rd lomarbrick 570 100 16 May 2023 663rd karlaacastro44 570 100 5 May 2025 667th markus-rekdal 564 101 10 May 2022 667th fraserli 🇦🇺 564 101 2 May 2023 667th FCORMERAIS 564 101 6 Mar 2024 667th yhm138 564 101 16 Feb 2025 671st AndersH3 🇸🇪 559 102 17 May 2023 671st JulieGermainUNT 559 102 2 Apr 2025 673rd rajlath 553 103 7 Jan 2023 673rd mnurzia 553 103 12 Oct 2023 673rd sqrteipi 553 103 2 Apr 2024 Prev 601–675 of 779 Next